Dust-catcher.



A. J. BOYNTQN. DUST OATGHEE. APPLICATION FILED MAYZ, 1'912.

1,063,110. v Patented May 27, 1913.

2 SHEETS-SHEET 2.

wrmssszs' INVENTOR Un TE 'sr TEs PATENT oruron.

ARTHUR J. IBOY-NTO-IBT, vOF LORAIN, OHIO.

DUST-CATCHER.

To all whom it may concern: Be it known that I, An rntm J. BoYN'roN, a citizen of the United States, residing at Lorain, in the county ofrLorain and State of Ohio. have invented a new and useful DLlSl-CfltCl161',tOli which the following is a specification.

. My inrention relates to the construction and arrangement of dust catchers used to remove finely divided solids from'gases, and more particularly to dry dust catchers used in removing-flue dust andother'finely divided solids fromvblast furnace and similar combustible gases. 4 y

one object of my invention is to provide a dust catcher having novel means whereby the course of the gases passing through the dust catcher is directed and controlled to eti'ect a more complete separation of the gases a nd solids carried in suspension therein, by which separation of the solids from the. gases when eitected ismaintained, and;

disturbance of the flue dnstsor soltds deposited within the dust catcher by gases later sweeping over accumulated dust is avoided and prevented. j

Another object of the invention is to provide a positively determined path for the gases of sutlicient length to effectively separate the flue dust 't'rom the gases and in a manner preventing reentry of dust deposited within the dust catcher into the current of gases after separation has taken place.

A "further object of my invention is to provide a dust catcher having a series of baillcs constrncted and arranged in a novel manner whereby the ethciency of the battles in removing the dust is largely increased scribed and claimed hereinatt er.

and the dust ccller-ted thereby is caused to Still further objects of my invention will appear as the invention 1s more fully deextends downwardly within the shell 2 from Specification of Letters Patent. I Patented )Iay 2'7, 1913, Application filed May 2, 1912. Serial No. 694,723. i i

the top 3 of the dust catcher, so as to form the spiral chambers vor compartments 6 and 7, and the inner chamber 8. The partition 5 has a downwardly and inwardly inclined or sloping bottom 9, the opening in the small end of the bottom 9 being connected to the tube 10. which forms a dust leg for the inner compartment 8. The sloping bottom 4 for the outer shell 2 of the dust catcher also is provided with branches 11 forming dust legs for the lower outer compartment 7 of the dust catcher. The dust legs 10 and 11 are normally closed by the movable sealing bells 12 engaging with the lower open ends of the.

dust legs, these bells being operatively mountedon the dust legs'lO and 11 to open and close in theusual known manner. Secured on the insidev of the shell2 of the dust catcher is a series of curved plates forming bafiies 13, the inner edges 14.01: these bafiles being cnnved teextend in a directien opposife to the direction of flow of the incoming gases. The bafiles 13, with the shell 2,- to which they are'secured form, on the periphery of the chambers 6 and 7 ,-a series of vertically extending channels 15, which have one side opening into the outer chambers 6 and 7. A At an intermediate point in the height of the dust catcher a horizontally extending partition 16 is provided, which is secured by one edge to the outer surface of the partition 5 andby the other edge to the curved inner edges of the battles 13, so as to divide the space between the partition 5 and shell 2into'the upper and lower chambers or compartments 6 and 7. The so-formed chambers 6 and 7 are connected by the series of channels 15 formed by the adjacent baffies 13. T

At the outer end of the spiral chamber 6 of the dust catcher the gas inlet .17 is 10.-

5 (rated, this gas inlet being rectangularin cross, section and of a height corresponding to the distance between the top 3 of the dust catcher and the partition 16. The opposite a or inner end of the spiral compartment 6 a dust leg s11.

compartment 6 and travel in a substantially horizontal direction around this conipa.rt-'

thrown outwardly by centrifugal force into thechannels 15 formed by the baflles 13. The horizontal direction of movement of the finely divided solid materials will interruptedfa-nd changedby engagement with the bafiies l3, and, by reason or" their weight, such materials will then drop or fall verti cally Within the channels 15 formed bythe bafiies l3 and passing downwardly beyond the partition 16 illenter'the dust chamber '2 andbe delivered into one or another of the It will be readily seen that owing to the spiral arrangement of the chamber 6 the length of travel of the ases in a horizontal direction through the dustcatcher is very largely increased, so thatthe removal of finely divided, solids is effected more complctely than has been possible with the dust catchers as constructed heretofore. The gases will continue their flow through the spiral chamber 6 and emerge therefrom at the inner end or" the chamber 6 into the innor compartment Solid materials deposited Within the chamber 8- from the column of clean gases ascending therein and passingout of the chamber 8- into the gas outlet main 1? will be deposited within the vertical dust leg 18. The deposited in the chambers by the gases collected in the dust legs 19 and 11 will be removed at intervals by lowering the sealing bells 9 on the lower ends of the dust legs.

The advantages of my invention will be apparentto those skilled in the art. By the peculiar construction of my gas washer the gases are caused togiass therethrough in a subst ntially horizontal path and the baflies will interrupt'and change the direction of flow of the finely divided solid in the gases, causing the solids to fall vertically into the lower compartment, Where they cannot be swept by the incoming gases so as to disturh the solids and cause their reentry into the incoming gases.

Modifications int-he constructionand arrangement of the parts may be made withoutosparting from my hivention. The spiral compartments may be constructed to form a path of more or, less than 360 degrees, as shown in the drawings. The number and siae of the battles may be varied, and the location of the partition separating the cheml '9 pg I v: I h and a may reason or lowered as is "found desirable or necessary, and other vari- :itions may be niade within the scope of my invention as defined in the appended claims. I claim 1. A dust catcher comprising an. inner chamber, aplurality of outer chambers sur rounding said inner chamber, said chambers having imperforatewalls, at least one outer chamber forming a spiral. having one end opening into the inner, chamber, a gas inlet on the opposite end of said spiral'chamber, a

gas outlet on the inner chamber, and meansforming openings connecting said outer chambers.

2. A dust catcher comprising an inner chamber, a plurality of outer chambers sur:

rounding said inner chamber, said chambers having imperforate alls, at least one outer chamber forming a spiral having' one end opening into the inner chamber, a. gas inlet on the opposite end of said spiral chamber, a gas outlet on the inner chamber, and a series of battles forming channels connecting said outer chambers.

3. A. dust catcher comprising an inner chamber, a plurality of outer chambers, said chambers having imperforate walls, at least one outer chamber surrounding said inner chamber and forming a spiral having one end opening into the inner chamber, a gas inlet on theopposite end of said spiral chamher, a gas outlet on the inner chamber, and a series of curved battles forming vertical channels connecting said outer chambers.-

4. A dust catcher comprising an inner chamber having a gas outlet openihg, a spiral outer chamber surroundinq'said inner chamber having a gas outlet" op ning into said inner chamber and a gas inlet connected with asource of gas supply,a dust chamber surrounding the inner chamber be low said outer chamber, said chambers having imperforate walls, and means forming a plurality of channels connecting said outer chamber and the dust chamber.

5. A dust catcher comprising an inner chamber having a. gas outletopening, a spiral outer chamber surrounding said inner chamber having a gas outlet oreuing into said inner chamber and. a gas in le connected with a source or gas supply, a dust. chamber surrounding the inner chamber below said outer chamber, said chambers having um perforate walls, and a seriesof bellies forrnin}; channels connecting the outer cham er and the dust chamber on the peripher of i said chambers.

6. A. dust catcher comprising an inner,

chamber having a gas outlet opening, a

spiral outer chamber surrounding said inner chamberheving a gas outlet opening into said inner chamber, and a gas inlet connected with a sourceof gas supply, a dust chamber surrounding the 111118! chamber. ba-

low said outer ohammr said chambers havof-said chambers, and. dust legs on the bottom of said inner chamber and dust chamber.

7. A dust catcher comprising an inner chamber and a plurality of spiral outer chambers, means forming channels connecting the outer chambers, a gas outlet on the inner chamber, a gas inlet connected to the outer end of one of said spiral outer cham- "bers, the inner end of said spiral chamber opening into said inner chamber.

8. A dust catcher comprising an inner chamber and spiral outer chambers surrounding said inner chambers, a gas outletin thetop of said inner chamber, a gas inlet.

to said inner chamber at one end of one spiral chamber, a gas outlet at the opposite end of said spiral chamber, and a series of baflies on the periphery of said spiral chambers forming vertical channels connecting said spiral chambers.

In testimony whereof, I have hereunto set my-hand.

ARTHUR J. BOYNTON.

Witnesses: I H. W. INGERSOLL, FLORENCE E. STETsoN.

copies at i111! P tent maybe obtained for five" cents each, by addressing the Commissioner of Patents.

Washington, D. 0. I 

